LED backlight module and display device

• Main Authors: ZHAO QIANG, FAN KAILIANG, ZHANG XUE, LIU CHUANBIAO, QIN KUAI, JIANG CHUNGAN
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention discloses an LED backlight module and a display device. A plurality of luminous units are distributed on a base plate of the LED backlight module, the surface of the base plate is provided with a plurality of solder mask window areas to which the luminous units attach, conducive routes connecting two adjacent luminous units comprises a main route and an auxiliary route, and an insulating substance is spread on the base plate except the solder mask window areas. Alignment errors in spreading may result in that reserved solder mask window areas are covered and actual solder mask window areas deviate. The auxiliary route goes through the solder mask window area and the wiring direction is intersected with a connection direction of two electrodes of the luminous units, so that the auxiliary route is long enough and avoids being covered largely, therefore, the part not covered by the insulating substance can be monitored using as a pad for crystal fixing in light checking, crystal fixing failure is p